311431003021141 has 4 divisors (see below), whose sum is σ = 311577146149984. Its totient is φ = 311284859892300.

The previous prime is 311431003021093. The next prime is 311431003021223. The reversal of 311431003021141 is 141120300134113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 311431003021141 - 2⁹ = 311431003020629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311431003021441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73071561225 + ... + 73071565486.

It is an arithmetic number, because the mean of its divisors is an integer number (77894286537496).

Almost surely, 2^{311431003021141} is an apocalyptic number.

It is an amenable number.

311431003021141 is a deficient number, since it is larger than the sum of its proper divisors (146143128843).

311431003021141 is a wasteful number, since it uses less digits than its factorization.

311431003021141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146143128842.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 311431003021141 its reverse (141120300134113), we get a palindrome (452551303155254).

The spelling of 311431003021141 in words is "three hundred eleven trillion, four hundred thirty-one billion, three million, twenty-one thousand, one hundred forty-one".